PPO stands for Preferred Provider Organization, which is a type of health insurance plan that allows you to choose healthcare providers within a network and also allows you to see providers outside of the network for a higher cost.

HMO stands for Health Maintenance Organization, which is a type of healthcare plan that typically requires members to choose a primary care physician and receive referrals to see specialists.

Exclusive Provider Organizations (EPOs) are a type of health insurance plan that requires you to receive medical care from a specific network of healthcare providers, except in the case of emergency care. If you go outside of the network, you will likely have to pay the full cost of the care yourself.

A Point-of-Service (POS) plan is a type of health insurance plan that allows members to choose between receiving care from in-network providers or out-of-network providers. If a member chooses to receive care from an out-of-network provider, they may have to pay higher out-of-pocket costs. The POS plan typically requires members to choose a primary care physician and get referrals to see specialists.